On 14th November, we visited Mundo Marino, the largest aquarium in South America. It is located in San Clemente del Tuyu, a city in the Province of Buenos Aires, Argentina.It is one of the most popular recreational destinations in our country with 40 hectares of park with various attractions: orcas and dolphins shows, visits to the penguin shelter, a tour by train around the park and meet other animals, and many more.Our visit was related to the project: Save a Penguin, created by the publishing house Pearson Longman to support Fundación Mundo Marino in an effort to help one of the endangered marine species on our coasts: the Magellan Penguin.